CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Operating activities
Net loss	$ (57,266)	$ (44,980)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	24,101	24,448
Provision for doubtful accounts	413	829
Deferred income taxes	618	(23,340)
(Gain) Loss on disposal or impairment of assets	0	925
Foreign currency transaction loss (gain), net	2	(111)
Stock compensation expense	2,750	3,399
PIK accrual on notes payable, related parties	997	0
Change in fair value of derivative instruments	159	(3,725)
Changes in operating assets and liabilities:
Trade accounts and other receivables	(14,128)	26,210
Inventories	4,689	(1,207)
Prepaid expenses and other current assets	(553)	833
Accounts payable	1,214	(2,194)
Accrued expenses	1,853	(9,136)
Income tax receivable, net	(1,171)	37,200
Other, net	1,405	283
Net cash (used in) provided by operating activities	(34,917)	9,434
Investing activities
Capital expenditures	(1,176)	(6,439)
Net cash used in investing activities	(1,176)	(6,439)
Financing activities
Repayments on long-term debt	(3,250)	(26,033)
Repayments on insurance financing agreement	(551)	0
Payments of debt issuance costs	(875)	(339)
Proceeds from notes payable, related parties	0	25,000
Purchase of common stock	(533)	(441)
Net cash used in financing activities	(5,209)	(1,813)
Effect of exchange rate changes on cash	249	675
Net (decrease) increase in cash and cash equivalents and restricted cash	(41,053)	1,857
Cash and cash equivalents and restricted cash at beginning of period	91,680	78,866
Cash and cash equivalents and restricted cash at end of period	50,627	80,723
Supplemental cash flow information
Interest paid	761	1,824
Income taxes paid	$ 0	$ 0